Made in USA. Melling offers an Engine Cylinder Deactivation Kit for converting Active Fuel Management engines to a Non-Active Fuel Management engines. The Melling Deactivation Kit includes all components need to complete the changeover. Vehicle Will Not Be CARB Compliant After The Vehicles Engine Control Module/Power Train Control Module Is Reprogramed. The kit includes (1) MDM Delete Camshaft, (4) Non-Active Fuel Management lifter guides, (16) Non-Active Fuel Management Hydraulic Roller Lifters and (1) Camshaft Thrust Plate, (1) VVT Oil Control Valve. All Melling Engine Cylinder Deactivation engine components are developed, engineered, tested and manufactured with the highest standards of quality and materials.